system/alacritty: Remove python dependency.

Signed-off-by: Andrew Clemons <andrew.clemons@gmail.com>

system/alacritty/alacritty.SlackBuild

@@ -126,7 +126,7 @@ mkdir vendor
       fi
 
       printf "}\n"
-    } | python -c "import sys, json; data = sys.stdin.read(); print json.dumps(json.loads(data), sort_keys=True, indent=4, separators=(',', ' : '))" > $dep-$ver/.cargo-checksum.json
+    } > $dep-$ver/.cargo-checksum.json
   done
 )